Sean Grayson fatally shot Massey after she called police to her home, in a killing that sparked outrage and protests.

The 36-year-old single mother had called the police saying she feared there was a prowler outside her Springfield home.

The former sheriff's deputy was convicted of second-degree murder for fatally shooting Sonya Massey, a mother of two, in the face after she called 911.

Sean Grayson fatally shot Massey after she called police to her home, in a killing that sparked outrage and protests.

An Illinois judge sentenced a former sheriff's deputy to 20 years in prison for the shooting death of a 36-year-old woman in her Springfield home.